The Treadly 2 and Treadly 2 Pro have an auto-alignment feature. The only manual adjustment you would need to do in the case of a belt issue would be tightening the belt. On the rare occasions that you'll need to align the belt manually, please follow the instructions in the video below:
When you should check if your belt is too loose?
- If you are hearing noises from the belt (if it's too loose, the belt could shift too much to one of the sides and create unwanted friction between the belt and the frame itself)
- If you are smelling "burning" plastic/rubber (for the same reason)
- If you feel the belt is moving sideways, or not moving as smooth as usual.
How to check if the belt is too loose/tight?
- Lift the unit from the back and lean it against a wall.
- Hold your fingers firm and press against the belt. Ideally, the belt should be firm, not too tight or too loose (you should not be able to feel the hard surface under the belt too easily and, at the same time, you should not apply a lot of pressure to feel it. In the video you can see that the left side is too loose, the middle is properly firm, and the right side is too tight:
What to do if the belt is not as firm as it should be?
If the belt is too loose:
Use the L-shaped Allen key you received with your Treadly to rotate the screw on the left and right side equally clockwise (rotate it only half a circle, 180 degrees). If you don't rotate the sides equally, the belt might be unaligned once you walk on the belt.
After you spin the screws once, check to see if the belt is loose. If it's still loose, repeat the action until the belt is properly firm to touch.
If the belt is too tight: (could happen if you over tighten it while trying to solve the loose belt)
Loosen it gently by equally rotating the screws on both sides (counterclockwise, half a spin at a time).
After you spin the screws once, check to see if the belt is still firm, but not over-tight. If it's still too tight, repeat the action until the belt is properly firm to touch.
Please note: Start with only 1/2 circle spin as instructed to avoid making the belt too loose or too tight.
What an overly tight belt can cause:
- Error messages due to malfunction of the engine (The engine cannot pull the belt and it will stop)
- Noise from the belt